Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues
Premiums	$ 133,229	$ 117,373	$ 104,109
Product revenue	14,978	12,657	10,384
Administrative fees and other revenue	7,453	6,913	6,315
Total operating revenue	155,660	136,943	120,808
Net investment income	1,485	1,378	877
Net (losses) gains on financial instruments	(550)	318	182
Total revenues	156,595	138,639	121,867
Expenses
Benefit expense	116,487	102,645	88,045
Cost of products sold	13,035	10,895	8,953
Selling, general and administrative expense	17,686	15,914	17,450
Interest expense	851	798	784
Amortization of other intangible assets	767	441	361
Loss on extinguishment of debt	0	21	36
Total expenses	148,826	130,714	115,629
Income before income tax expense	7,769	7,925	6,238
Income tax expense	1,750	1,830	1,666
Net income	6,019	6,095	4,572
Net loss attributable to noncontrolling interests	6	9	0
Shareholders’ net income	$ 6,025	$ 6,104	$ 4,572
Shareholders’ net income per share
Basic net income per share	$ 25.10	$ 25.04	$ 18.23
Diluted net income per share	24.81	24.73	17.98
Dividends per share	$ 5.12	$ 4.52	$ 3.80